person with backpack 3d model

Please generate a detailed 3D relief on a flat surface based on my attached image. The relief should accurately capture all visible contours, depth transitions, and fine details of the original picture. Maintain correct proportions and ensure smooth height gradients to avoid unwanted sharp steps. Use clean edge boundaries and preserve the main structural lines so the design remains clear after machining. The final relief should be suitable for CNC milling / laser engraving, with optimized depth levels and a uniform surface finish.